1 can definitely be split into 1a) host provides main dish and assigns specific dishes to specific guests, and 1b) full-blown potluck with no official dish assi

1 can definitely be split into 1a) host provides main dish and assigns specific dishes to specific guests, and 1b) full-blown potluck with no official dish assignments at all, hopefully no load-bearing grandma has died since the last potluck.